Heavy duty forward acting stapling machine



FIG. 1 is a perspective, right side view of a heavy duty forward acting stapling machine showing our new design, the broken line showing of a fragmentary human hand is for illustrative puposes only and forms no part of the claimed design;

FIG. 2 is a top plan view of my new design;

FIG. 3 is a left side elevational view;

FIG. 4 is a right side elevational view;

FIG. 5 is a bottom plan view;

FIG. 6 is a rear elevational view; and,

FIG. 7 is a front elevational view. 

The ornamental design of a heavy duty forward acting stapling machine, as shown and described. 